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    • 9. 发明授权
    • Low-density parity check convolution code (LDPC-CC) encoder and LDPC-CC decoder
    • 低密度奇偶校验卷积码(LDPC-CC)编码器和LDPC-CC解码器
    • US08423876B2
    • 2013-04-16
    • US12668655
    • 2008-07-11
    • Shutai OkamuraYutaka MurakamiMasayuki Orihashi
    • Shutai OkamuraYutaka MurakamiMasayuki Orihashi
    • H03M13/03
    • H03M13/118H03M13/1111H03M13/1154H03M13/23H03M13/235H03M13/6362
    • It is possible to provide and an LDPC-CC (Low-Density Parity-Check Convolution Codes) encoder and an LDPC-CC decoder which performs an error correction encoding and decoding while reducing the amount of a termination sequence required for encoding/decoding the LDPC-CC encoding/decoding and suppressing degradation of the transmission efficiency. The LDPC-CC encoder (400) includes a weight control unit (470) which stores a weight pattern (475) based on an LDPC-CC inspection matrix (100); and a weight pattern (476) based on a check matrix (300) obtained by deforming an LDPC-CC inspection matrix (100). The weight control unit (470) controls a weight to be multiplied onto the outputs of a plurality of shift registers (410-1 to 410-M, 430-1 to 430-M) by using the weight pattern (475) when the input bit is an information sequence, and using a weight pattern (476) which makes a weight value to be multiplied by an inspection bit v2,t to be 0 when the input bit is a termination sequence.
    • 可以提供LDPC-CC(低密度奇偶校验卷积码)编码器和LDPC-CC解码器,该LDPC-CC解码器在减少LDPC编码/解码所需的终止序列的量的同时进行纠错编码和解码 -CC编码/解码并抑制传输效率的降低。 LDPC-CC编码器(400)包括:权重控制单元(470),其基于LDPC-CC检查矩阵(100)存储权重模式(475); 以及基于通过使LDPC-CC检查矩阵(100)变形而获得的校验矩阵(300)的权重模式(476)。 权重控制单元(470)通过使用加权模式(475)来控制要乘以多个移位寄存器(410-1至410-M,430-1至430-M)的输出的权重 位是信息序列,并且当输入比特是终止序列时,使用使加权值乘以检查比特v2的加权模式(476),t为0。